fd739804e0
For a default visibility external linkage definition, dso_local is set for ELF
-fno-pic/-fpie and COFF and Mach-O. Since default clang -cc1 for ELF is similar
to -fpic ("PIC Level" is not set), this nuance causes unneeded binary format differences.
To make emitted IR similar, ELF -cc1 -fpic will default to -fno-semantic-interposition,
which sets dso_local for default visibility external linkage definitions.
To make this flip smooth and enable future (dso_local as definition default),
this patch replaces (function) `define ` with `define{{.*}} `,
(variable/constant/alias) `= ` with `={{.*}} `, or inserts appropriate `{{.*}} `.
19 lines
535 B
C
19 lines
535 B
C
// REQUIRES: powerpc-registered-target
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// RUN: %clang_cc1 -triple powerpc-unknown-linux-gnu -emit-llvm -o - %s -O2 -disable-llvm-passes | FileCheck %s
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int boolsize = sizeof(_Bool);
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// CHECK: boolsize ={{.*}} global i32 1, align 4
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void f(_Bool *x, _Bool *y) {
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*x = *y;
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}
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// CHECK-LABEL: define{{.*}} void @f(
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// CHECK: [[FROMMEM:%.*]] = load i8, i8* %
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// CHECK: [[BOOLVAL:%.*]] = trunc i8 [[FROMMEM]] to i1
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// CHECK: [[TOMEM:%.*]] = zext i1 [[BOOLVAL]] to i8
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// CHECK: store i8 [[TOMEM]]
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// CHECK: ret void
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// CHECK: i8 0, i8 2}
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